E.D. HILL, GUEST HOST: In the "Impact" segment: It's a dirty job, but somebody has got to do it. That is the concept behind one of the Discovery Channel's most popular shows, as host Mike Rowe searches America for the most disgusting occupations. Here's a look at some of the most bizarre jobs he's come across.

BILL O'REILLY, HOST: All right, Mike. I hold in my hand a list of the five worst jobs in the United States of America, all of which you have held for your program.

All right. The first one is sewer inspector.

MIKE ROWE, HOST, "DIRTY JOBS": Inspecting the sewers in San Francisco is challenging, because the sewers run, like the streets, lie up and down. So the flow, if you will, is memorable.

And it's critical to make sure the infrastructure underneath the streets is solid, because if there's an earthquake in San Francisco and the sewers go down, of course, the streets are going to run with poo, and nobody wants that.

O'REILLY: Did you find anything interesting down there?

ROWE: I found a series of cracks, none of which made me happy, because you have to go down with mortar around your neck and a trowel. So you're bent over as the effluent is flowing between your legs.

O'REILLY: And you have a big suit on, right?

ROWE: I have a small suit on.

O'REILLY: Small suit?

ROWE: Well, "European Husky."

O'REILLY: All right. The second one you have is snake wrangler.

ROWE: You catch the water snake, and you make it vomit. And then you look under a microscope at the puke to make sure it is of a healthy consistency.

What she doesn't tell you is that when you grab the water snake, they have a mouthful of teeth, and it will bite you. It's annoying the first 10 times, and then after that, it's just merely off-putting.

O'REILLY: There's no poison? There's not poison?

ROWE: No poison. Just pure pain.

O'REILLY: But you could get tetanus or stuff like that, right?

ROWE: Sure. Right, sure, but it's best not to.

O'REILLY: Yes, but you didn't care, right?

ROWE: I didn't care because I'm extraordinarily brave, Bill.

O'REILLY:Chicken sexer.

ROWE: Good times.

O'REILLY: Now, easy on this one, Mike.

ROWE: Sure. It's a horrible job. Chicken sexing is critical. You need to determine whether you're talking about cockerels of pullets within the first 24 hours of a chick being born a boy or girl. Sadly, the organs in question on a baby chick are located in its rectum, but the view is blocked by the albumen, which is the white part of the egg, which is essentially what the chick ingests before it's born. Anyway, you have to squeeze the poo out of the chick and then look…

O'REILLY: To find out.

ROWE: That's right.

O'REILLY: You get paid by the chicken or…

ROWE: I don't believe I was paid at all that day, in hindsight.

O'REILLY: But there are people who are paid to do that, right?

ROWE: In all seriousness, it's critical, because no one really wants the roosters. One rooster is enough to take care of 100 hens.

O'REILLY: Yes, you don't want to have roosters running around. No sleep, and they're obnoxious.

ROWE: Chaos. And they're noisy.

O'REILLY: OK. The next one is horse inseminator.

ROWE: Collecting from a stallion and inseminating a mare.

O'REILLY: A person has to do this?

ROWE: Absolutely.

O'REILLY: Not a machine?

ROWE: No, no, no.

O'REILLY: It's got to be done by hand.

ROWE: No, you need the opposable thumb, believe me.

O'REILLY: OK. So are you in charge of the whole process, from soup to nuts?

ROWE: Well, my job on the show — that's not bad.

O'REILLY: Thanks.

ROWE: My job on the show is to always be the apprentice.

O'REILLY: So somebody's there.

ROWE: Someone's instructing me.

O'REILLY: But a real American is doing this as a job?

ROWE: Absolutely.

O'REILLY: What does that pay? What does a horse inseminator pay?

ROWE: That's not bad. That's not bad. Plus, the horse still calls you.

O'REILLY: OK. So what do you make, 60 grand doing that?

ROWE: I would say at least.

O'REILLY: The last one: shark suit tester.

ROWE: Bad job. A shark suit is a relatively new invention that borrows from the old-time suit of armor. It's made with a higher-grade steel and a much smaller weave. You put on the suit; you hop in the water; you create a bloodbath of chum. The sharks come in, and you let them bite you. If you live, the suit works. If you don't, it's unfortunate.

How much money did you make? That's all I care about. I'm in it for the money.

ROWE: Very little. I find that to be a, well, a dirty job.

O'REILLY: OK, Mike, I think you've run it down for us. We appreciate your coming in.

ROWE: Happy to help.

(END VIDEOTAPE)

HILL: Isn't that fascinating? I am so grateful for my job after seeing that.

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